[patch] malloc per-thread cache ready for review

[DJ Delorie]

Markus Trippelsdorf <markus@trippelsdorf.de> writes:
> Thanks. It works fine now.

Excellent :-)

> But I see no speedups for a simple compile time test:

GCC is single threaded and has its own internal memory management system
it layers on top of malloc, and I've not seen it benefit from a
per-thread cache.

I posted benchmark results here so you can see what type of applications
are affected by tcache:
https://sourceware.org/ml/libc-alpha/2017-01/msg00452.html